Fix Windows Defender Error 0x80070422: Cannot Connect
If you see error 0x80070422 when trying to open Windows Defender Security Center, the service is ...
Checklists for software errors, setup, and tool workflows.
1. Reproduce
2. Isolate
3. Apply
4. Verify
Latest checklists
View listFix PuTTY Network Error: Connection Refused on Ubuntu
When you try to connect to an Ubuntu machine using PuTTY and see "Network error: Connection refus...
How to Fix Command Prompt Not Working on Mac
If you're trying to use the command prompt on a Mac, you're likely referring to the Terminal app....
Microsoft Store Settings Reset Checklist: Step-by-Step
If the Microsoft Store won't load, apps fail to update, or you see error codes like 0x80073CF0, a...
Windows Security App Missing After Update: How to Fix
After a Windows update, you might find the Windows Security app missing from the Start menu or sy...
Removing Malware Causing High CPU Usage in Command Prompt
If you notice high CPU usage in Task Manager attributed to Command Prompt (cmd.exe), svchost.exe,...
Topic paths
Quick titles
Windows Security Slow Performance ChecklistResolve Outlook Error 0x8004010fWindows Search Not Working: Fix for No ResultsTroubleshooting Outlook 504 Gateway TimeoutFix OneDrive High Memory Usage After Latest UpdateConda Solve Failed: How to Fix Environment ErrorsResolve Remote Desktop Service Unavailable ErrorHow to Fix Windows Defender Permission Denied Scanning Errors